before 3.16, easy remove window titles maximized windows - editing metacity-theme.xml file. however, 3.16 using client side decorations, , metacity has no control on window decorations. there way of hiding window titles, or @ least making them smaller?
you can minimize (not remove) title bar removing padding it. add following code file $home/.config/gtk-3.0/gtk.css (create if not exists):
.maximized .header-bar.default-decoration { padding: 0; font-size: 0.7em; } .maximized .header-bar.default-decoration .button.titlebutton { padding: 0; border-width: 0; } apart can use gnome extension maximus two rid of title bars on maximized windows. version supporting 3.16 available here: http://michaeltunnell.com/blog/16-linux/56-my-updated-316-packages-for-gnome-extensions
here short script more or less same maximus two (using _gtk_hide_titlebar_when_maximized atom): https://gist.github.com/tuxor1337/74e76d3d153c67593454 need run on gnome startup , leave running in background (might helpful: start script when gnome starts up).
by way, here can idea of how remove title bar all windows: https://unix.stackexchange.com/questions/156300/xprop-set-motif-wm-hints-hides-maximized-window
